Construction site scene with bus and car on a snowy road surrounded by trees. In the right corner there is the Portwest brand logo. There is a link to the collection of thermal and cold storage clothing.

When temperatures drop below 0 degrees, we need to wrap up warm. Because thickly lined jackets can restrict mobility during everyday work, it is advisable to dress in layers. Thermal underwear offers optimal protection against the cold and regulates moisture thanks to breathable materials.

Here's a look at some of our favorites

Clicking on the image will take you directly to the article.

 

Example image of the long-sleeved thermal shirt B123 in black with a link to the article.

B123 - Thermal T-Shirt Long Sleeve

 

A long sleeve t-shirt cut that offers optimum warmth at all times. The material construction allows the skin to breathe if conditions become too warm. The round neck makes it ideal for wearing as an under-garment

Features

  • Provides insulation and thermal protection
  • Designed with a comfort fit
  • Round neck and long sleeves
  • Available in an excellent choice of corporate colours
 
Shell Fabric:
50% Polyester, 50% Cotton 200g
 
 
 

 
Example image of the short-sleeved thermal shirt B120 in black with a link to the article.

B120 - Thermal T-Shirt Short Sleeve

A traditional t-shirt cut that offers optimum warmth at all times. The material construction allows the skin to breathe if conditions become too warm. The round neck makes it ideal for wearing as an under-garment

Features

  • Provides insulation and thermal protection
  • Designed with a comfort fit
  • Available in an excellent choice of corporate colours 
 
Shell Fabric:
50% Polyester, 50% Cotton 200g
 
 
 
 

 
Example image of the thermal trousers B121 in black with a link to the article.

B121 - Thermal Trousers

The B121 creates a layer of warmth around the lower body. The soft poly-cotton fibres and fabric knitting mean that heat is trapped in. Cuffed hem and elasticated waist provide a comfortable fit.

Features

  • Provides insulation and thermal protection
  • Designed with a comfort fit
  • Ribbed hem for a comfortable fit
  • Available in an excellent choice of corporate colours

 

Shell Fabric:
50% Polyester, 50% Cotton 200g
 
 
 
 

 
Example image of the thermal baselayer leggings B131 in black with a link to the article.

B131 - Thermal Baselayer Leggings

These smooth leggings have low profile seam construction for ultimate comfort.

Features

  • Provides insulation and thermal protection
  • Breathable, high-wicking, moisture management
  • Designed with a comfort fit
  • Excellent moisture wicking properties
  • Retail box which aids presentation for retail sales
  • Quality wicking fabric finish enhances drying and aids stain removal
Shell Fabric:
100% Wicking Polyester 140g

 

 

 

Male model with short brown hair showing off thermal underwear. Link to the collection of thermal and cold storage clothing.

 

Button in orange that leads to the collection of thermal and cold storage clothing.